Material is 100% blackout. The curtains have many defects and holes in it. In fact, they are even more visible than they're on the photos. Also, the color does not match the photo shown. I ordered the color light beige number RSM-09, I got khaki brown, probably RSM-10. I have some the money back.
Quality product but the material is a little bit thin too thin to use it like a thermal panel. OK for making dark in front of windows. You can trust the product because the quality is good.